Internal-combustion engine



v P. D. HIBNER.

N TERNAL COMBUSTION ENGINE.

PLlCATlON FILED APR. 19. 1919.

1,342,108. i? Patented June 1, 1920.

COMPRESSED AIR LINE COMPRESSED GOMBUSTIBLE GAS LINE COMPRESSED AIR ANDGAS THROTTLE vALvE f INTERNAL 612, COMBUSTION ENGINE 23 EXHAUST LINE--'25 W COMPRESSED COMBUSTIBLE GAS a= REsERvoIR GUT our VALVE fi 91 DRAINCOCK --I4 COMPRESSED LIQUID FUEL REsERvoIR COMPRESSED Am I REDUCINGVALVE coMPREssED AIRREsERvoIR COMPRESSED AIR AND I J LIQUID FUEL\coNPREssED AIR 16 MIXER CHECK VALVE AN LIQUID FUEL CONTROLING vALvEIIwgWJtOT UNITED STATES PATENT. OFF CE;

PHILIP I). HIIBNER, OF SEATTLE, WASHINGTON.

Application filed April 10,

To all whom it may concern:

Be it known that I, PHILIP D. HIBNER, a citizen of the United States,and resident of the city of Seattle, county of King, and State of\Vashington, have invented a new and useful Improvement in Internal-Coinbustion Engines, of which the following is a specification.

The object of my invention is to provide novel means for producing acompressed combustible gas by forcing compressed air and liquid fuelthrough a mixer and vaporizer and for supplying the compressedcombustible gas to an internal combustion engine, means also beingemployed to supply compressed air to the engine for starting the sameand for scavenging and cooling the engine cylinders. t

The object of my invention more particularly is to provide certainimprovements incharge forming devices whereby the liq? uid fuel and airare forced through a suitable mixer andvaporizer and the resultingcompressed combustible gas is forced from the mixer and vaporizer into areservoir from which the engine is supplied; means controlled by therise and fall in the pressure of the combustible gas being employed forclosing and opening the supply of compressed air andliquid fuel to themixer and vaporizer; and means being employed for opening to a greateror lesser degree the supply of compressed combustible fuel or compressedair or both to the engine, the cycle of operations of the engine beingcontrolled by its own valves designed to alternately admit thecompressed combustible gas and compressed air.

A practical embodiment of my invention is represented diagrammaticallyin the accompanying drawings.

The internal combustion engine 1 may be of the rotary type, its valvechests being denoted by 2. The air pump 3 is driven from the shaft4 ofthe engine and forces compressed air into the reservoir 5 through theline 6. Compressed air is supplied to the fuel reservoir 7 through theline 8 which line may have a reducing valve 9 therein.

A liquid fuel supply line 10 leads from the reservoir 7 to the mixer andvaporizer 11. A compressed air supply line 12 leads from the compressedair reservoir 5 also to the mixer and vaporizer 11. Means may beprovided for heating the compressed air 7 as it leads from the reservoir5 to the mixer Specification of Letters Patent.

INTERNAL-COMBUSTION ENGINE.

Patented June 1,1920.

1919. Serial No. 253,950.

and vaporizer, such means being herein denoted by a heater 13 located inthe exhaust line 14 of theengine and surrounding coils in the compressedair supply line.

compressed air and liquid fuel controllingv valve 15 is located inthesupply lines 12 and 10. A compressed combustible gas supply line 16leads from the mixer and vaporizer 1,1 to the compressed combustible gasreservoir 17, in which line is located a check Valve 18.

A branch line 19 leads from the compressed combustible gas line 16 tothe controlling valve 15, whereby the valve is operated to close andopen the compressed air and liquid fuel supply lines to the mixer andvaporizeras the pressure in the combustible gas reservoir rises andfalls to predetermined points.

A drain line 20 leads from the bottom of the compressed combustible gasreservoir 17 to the top of the'liquid fuel reservoir 7 in which line islocated a drain cocl; 21 whereby any liquid fuel which is deposited inthe compressed combustible gas reservoir may be drained at suitabletimes into. the liquid fuel reservoir. A compressed combustible gassupply line 22 with' its branches leads to the valve chests 2 of theengine through a manually operated throttle valve 23.

A compressed air supply line 24 with its branches also leads to thevalve chests 2 through the manually operated throttle valve 23. l w v Acut out valve 25 may be provided in the engine exhaust line 14 forcontrolling the passage of the products of combustion to the heater 18.

The mixer and vaporizer 11 may be like the one represented in myapplication filed January 27 1919,Serial No. 273365,anid the compressedair and liquid fuel controlling valve 15 may be like the one representedin my application filed January 18, 1919, Serial No. 271857.

The throttle valve 23. may be like the one represented in applicationfiled January 28, 1919 Serial No. 273627, and the internal combustionengine may be like the one represented in my application filed March 11,1919, Serial No. 281953.

The air pump may be like the one represented in my United States LettersPatent No.1242692 dated October 9, 1919.

In operation and presupposing the reservoir 5 to have a supply ofcompressed air and the reservoir 7 to have a supply of liquid fuel thethrottle valve 23 is turned to a position which will supply compressedair only to the valve chests 2 of the engine, thereby starting theengine and the air pump. After the engine and pump have been started,the throttle valve 23 is turned into a position to supply both thecompressed combustible gas and the compressed air to the said valvechests, the valves therein being operated to alternately supply the compressed combustible gas and the compressed air to the engine, wherebythe engine is cooled and scavenged after each combustion, thus reducingthe temperature of the combustion chambers and by the completeelimination of the burned gases, materially increasing the efficiency ofthe engine.

The compressed air and liquid fuel supply controlling valve 15 isoperated by a rise or fall in the pressure of the combustible gas in thereservoir 7 to close or open the compressed air and liquid fuel supplylines to the mixer and vaporizer, thus automatically maintaining thecombustible gas at substanti ally a predetermined pressure.

The system as above described is very effective in the production of anQ'fliClGllt fuel and in the supercharging and scavenging of the engine,the arrangement of the parts being very simple and their operationautomatic after the engine started.

What I claim is:

1. In con'ibination, an internal combustion engine, a mixer andvaporizer, pressure means for forcing the air and liquid fueltherethrough and in the form of a compressed combustible to the engineand a compressed air and combustible gas, one or both, to the engine.

3. In combination, an internal combustion engine, a mixer and vaporizer,pressure means for forcing the air and liquid fuel therethrough and inthe form of a compressed combustible gas to the engine, a 'alvecontrolled by the rise and fall of the combustible gas pressure forclosing and opening the supply of air and. liquid fuel to the mixer andvaporizer, and a throttle valve for regulating the supply of compressedair and combustible gas, one or both, to the engine.

4. In combination, an internal combustion engine, a mixer and vaporizer,a gas reservoir, pressure means for forcing air and liquid fuel throughthe mixer and vaporizer and in the form of a compressed combustible gasto the reservoir and a valve controlled by the rise and fall of thecombustible gas pressure for closing and opening the supply of air andliquid fuel to the mixer and vaporizer.

5. In combination, an internal combustion engine, a mixer and vaporizer,a gas reservoir, pressure means for forcing air and liquid fuel throughthe mixer and vaporizer and in the form of a compressed combustible gasto the reservoir and a throttle valve for regulating the supply ofcompressed air and combustible gas, one or both, to the engine.

6. In combination, an internal combustion engine, a mixer and vaporizer,a gas reservoir, pressure means for forcing air and liquid fuel throughthe mixer and vaporizer and .in the form of a compressed combustible gasto the reservoir, a valve controlled by the rise and fall of thecombustible gas pressure for closing and opening the supply of air andliquid fuel to the mixer and vaporizer, and a throttle valve forregulating the supply of compressed air and combustible gas, one orboth, to the engine.

7. In combination, an internal combustion engine, its valve chests, anair and liquid fuel mixer and vaporizer, compressed air,

liquid fuel,,and combustible gas reservoirs, supply lines leading fromthe com1 )ressed. air and liquid fuel reservoirs to the mixer andvaporizer; from the compressed air and combustible gas reservoirs to thevalve chests and from the mixer and vaporizer to the combustible gasreservoir.

8. In combination, an internal combustion engine, an air and liquid fuelmixer and vaporizer, compressed air, liquid fuel, and combustible gasreservoirs, supply lines leading from the compressed air and liquid fuelreservoirs to the mixer and vaporizer; from the compressed air andcombustible gas reservoirs to the engine, and from the mixer andvaporizer to the combustible gas reservoir and a valve controlled by therise and fall of the combustible gas pressure for closing and openingthe supply of air and liquid fuel to the mixer and vaporizer.

9. In combination, an internal combustion engine, an air and liquid fuelmixer and vaporizer, compressed air, liquid fuel, and combustible gasreservoirs, supply lines leading from the compressed air and liquid fuelreservoirs to the mixer and vaporizer; from the compressed air andcombustible gas reservoirs to the engine, and from the mixer andvaporizer to the combustible gas reservoir and a throttle valve forregulating the supply of compressed air and combustible gas, one orboth, to tlie engine.

10. In combination, an. internal combustion engine, an air and liquidfuel mixer and vaporizer, compressed air, liquid fuel,

and combustible gas reservoirs, supply lines leading from the compressedair and liquid fuel reservoirs to the mixer and vaporizer; from thecompressed air and combustible gas reservoirs to the engine, and fromthe mixer and vaporizer to the combustible gas reservoir, a valvecontrolled by the rise and fall of the combustible gas pressure forclosing and opening the supply of air and liquid fuel to the mixerand'vaporizer, and a throttle valve for regulating the supply ofcompressed air and combustible gas, one or both, to the engine.

11. In combination, an internal combustion engine, its valve chests, anair pump driven by the engine, an air and liquid fuel mixer andvaporizer, compressed air, liquid fuel, and combustible gas reservoirs,supply lines connecting the compressed air reservoir With the air pump,the liquid fuel reservoir, the mixer and vaporizer and the valve chestsand a supply line connecting the liquid fuel reservoir with the mixerand vaporizer and supply lines connecting the combustible gas reservoirWith the mixer and vaporizer and the valve chests.

12. In combination, an internal combustion engine, an air pump driventhereby, an air and liquid fuel mixer and vaporizer, compressed air,liquid fuel, and combustible gas reservoirs, supply lines connecting thecompressed air reservoir with the air pump, the liquid fuel reservoir,the mixer and vaporizer, and the engine and a supply line connecting theliquid fuel reservoir with the mixer and vaporizer, supply linesconnecting the combustible gas reservoir With the mixer and vaporizer,and the engine and a valve controlled by the rise and fall of thecombustible gas pressure to close and open the compressed air and liquidfuel supply lines to the mixer and vaporizer.

13. In combination, an internal combustion engine, an air pump driventhereby, an air and liquid fuel mixer and vaporizer, compressed air,liquid fuel, and combustible gas reservoirs, supply lines connecting thecompressed air reservoir With the air pump, the liquid fuel reservoir,the mixer and vaporizer and the engine and a supply line connecting theliquid fuel reservoir With the mixer and vaporizer, supply linesconnecting the combustible gas reservoir With the mixer and vaporizerand engine, and a throttle valve for opening and closing the compressedair and combustible gas supply lines to the engine.

14. In combination, an internal combustion engine, an air pump driventhereby, an air and, liquid fuel mixer and vaporizer, compressed air,liquid fuel, and combustible gas reservoirs, supply lines connecting thecompressed air reservoir With the air pump, the liquid fuel reservoir,the mixer and vaporizer and the engine and a supply line connecting theliquid fuel reservoir With the mixer and vaporizer, supply linesconnecting the combustible gas reservoir with the mixer and vaporizerand the engine, a valve controlled by the rise and fall of thecombustible gas pressure to close and open the compressed air and liquidfuel supply lines to the mixer and vaporizer and a throttle valve foropening and closing the compressed air and combustible gas supply linesto the engine. 4

In testimony, that I claim the foregoing as my invention, I have signedmy name this 20th day of March, 1919.

PHILIP D. HIBNER.

